{"id":"EUVD-2026-46390","revision":"72633152034a4ed087eb50c1dcfdd90e","records":[{"revision":"72633152034a4ed087eb50c1dcfdd90e","observedAt":"2026-11-05T10:02:45.567+00:00","statement":{"source":"euvd","id":"EUVD-2026-46390","aliases":["CVE-2026-46403","GHSA-jc6w-wmfc-fh33"],"title":"Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnl…","description":"Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnly(true)`, executes the destination context, and then restores the previous read-only state. However, the indirect contract delete and upgrade paths do not reject execution when `runtime.ReadOnly()` is true. As a result, a contract reached through read-only execution can call the production delete hook for a target contract it owns. The delete path appends the target address to `vmOutput.DeletedAccounts`, the output context merges `DeletedAccounts` into the caller output, and the smart contract processor later processes the VM output by deleting accounts listed in that field. The root cause is that read-only mode is applied as runtime state, but not enforced by the state-changing delete and upgrade host-core paths. This breaks the expected isolation boundary for workflows that rely on read-only calls to inspect another contract without allowing that callee to produce state-changing VM output. The issue is fixed in v1.7.17. Contract delete and upgrade host-core paths now reject execution when `runtime.ReadOnly()` is true. The invariant is regression-tested for delete, upgrade, storage writes, value transfers, and any VM output field that can later mutate chain state.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N","score":6.3,"severity":null}],"references":["https://github.com/klever-io/klever-go/security/advisories/GHSA-jc6w-wmfc-fh33","https://github.com/klever-io/klever-go/commit/333f6ec910906e227705fc5767dc897d8fbfc862","https://github.com/klever-io/klever-go/commit/68b94a40824fac2d848a4ded6eb7c91ada6ce9ef"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-46390","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 21, 2026, 7:51:18 PM","dateUpdated":"Jul 22, 2026, 2:28:22 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-46390","identifiers":["EUVD-2026-46390","CVE-2026-46403","GHSA-jc6w-wmfc-fh33"]},"retained":false,"historicalAffected":[]}],"coverage":[]}